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Fanglin Li

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Proceedings Article | 28 October 2021 Paper

Center heatmap attention for few-shot object detection

Fanglin Li, Jie Yuan, Shuyi Feng, Xiaomin Cai, Hao Gao

Proceedings Volume 11884, 118840R (2021) https://doi.org/10.1117/12.2604295

KEYWORDS: Image classification, Neural networks, Data modeling, Statistical modeling, Networks

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With the development of computer vision and deep learning, the convolutional neural network has been widely used in image processing such as object detection and semantic segmentation, and has achieved breakthrough achievements. However, when the training samples are insufficient, the conventional neural network usually has unsatisfactory robustness. In order to solve the problem, we improve the generalization performance of the few-shot detectors by focusing on the target center and can identify novel categories. The paper proposes a new attention mechanism based on the auxiliary circle feature map of the object center. By selecting an auxiliary circle feature map with the object center as the center of the circle and the minimum size in height and width as the diameter, adding it to the anchor-free CenterNet network as soft attention to promote network training. Several experiments on PASCAL VOC2007/2012 datasets show that the proposed method achieves the most advanced level in terms of the accuracy and standard deviation of few-shot object detection, which indicates the algorithm’s effectiveness.

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